10.5 Liquidity, Due Diligence, and Performance Measurement

Liquidity as a risk factor

Liquidity is the ability to convert an investment to cash at a reasonable price within a required time. Many alternatives intentionally trade liquidity for expected return, access, or manager flexibility. That trade can suit a long-horizon investor but is dangerous for one with near-term spending needs.

Liquidity terms appear in several forms. A lock-up bars redemption for a stated period after investment. A notice period requires investors to request withdrawals in advance, sometimes 30-90 days. A gate limits the amount that can be redeemed at one time. A side pocket segregates illiquid assets so they are not sold at distressed prices. A capital call obligates an LP to provide cash when the GP requests it, often within 10 business days.

Due diligence scope

Alternative investment due diligence has two legs. Investment due diligence asks whether the strategy can earn returns after fees and risks. Operational due diligence (ODD) asks whether the organization can execute, value, control, and report the strategy without unacceptable failure risk. Both matter; many failures are operational, not investment-thesis driven.

A strong track record is not enough. The investor should test whether returns came from skill, beta exposure, leverage, illiquidity, or luck, and whether the strategy has grown too large, too crowded, or too dependent on one person or market condition.

Valuation and appraisal issues

Public securities are marked at observable prices. Many alternatives are marked using appraisals, broker quotes, models, or manager estimates. These may be reasonable, but they create uncertainty and possible smoothing. Smoothing lowers reported volatility and can lower reported correlation with public markets, flattering risk-adjusted statistics.

Stale pricing distorts risk measures. A Sharpe ratio can look better when the denominator, volatility, is understated. Betas can look artificially low when returns lag public-market moves. During a crisis, true economic correlation can spike even if historical reported correlation looked modest, the moment diversification is needed most.

Performance measures and biases

Private funds typically report internal rate of return (IRR) and multiples. IRR is sensitive to timing and can look high when cash is returned quickly, even if total wealth created is modest. Multiple of invested capital (MOIC) measures total cash returned relative to cash invested but ignores how long that took. Time-weighted return removes the effect of external cash-flow timing and is best for comparing public managers, while money-weighted return (IRR) embeds cash-flow timing and fits private funds where the GP controls timing. The public-market equivalent (PME) compares private cash flows against a public benchmark.

Database biases inflate reported alternative returns. Survivorship bias occurs when failed funds drop out of the data. Backfill (instant-history) bias occurs when a manager adds earlier good returns after deciding to report. Selection bias arises because only some managers report at all. Together these make historical hedge fund and private indices look more attractive than the average investor's experience.

Structured aid: performance interpretation checklist

1. Start with net-of-fee returns whenever available.
2. Identify the measure: time-weighted, money-weighted/IRR, or MOIC.
3. Adjust the interpretation for leverage and liquidity.
4. Ask whether valuations are market prices, appraisals, models, or manager estimates.
5. Look for survivorship, backfill, and selection bias in the data set.
6. Compare liquidity terms with the investor's actual cash needs.

Exam traps

A high IRR is not automatically better than a lower IRR when the cash invested, holding period, and reinvestment assumptions differ. A smooth return series is not automatically low risk. A strong gross return can be ordinary after management fees, incentive fees, expenses, and taxes. Due diligence is not just reading a pitch book; it includes verifying operations, controls, service providers, legal terms, valuation methods, and exposures. The exam usually favors the answer that looks behind the reported number.

Independent controls and red flags

The single most tested operational concept is separation of duties. The manager who makes investment decisions should not also have sole control over custody, valuation, and the reporting of returns. Independent providers, an external custodian holding the assets, a third-party administrator striking the net asset value, and a reputable external auditor, reduce the risk of fraud and valuation manipulation. When a fund self-administers, self-custodies, or uses an obscure auditor, that concentration of control is a classic red flag that an exam scenario may describe.

Other recurring red flags include returns that are too smooth to be plausible for the stated strategy, a refusal to disclose holdings or service providers, sudden style drift away from the mandate, heavy reliance on a single key person, and assets under management that have grown far beyond the strategy's capacity. Each of these maps to a due-diligence response rather than an investment-thesis response.

The takeaway for performance measurement is that the quality and independence of the people who produce a number can matter more than the number itself, and a defensible recommendation often conditions any allocation on completing or strengthening operational due diligence first.